HP seems to be first switching Windows 10 on PCs, tablets

Hewlett-Packard will start pre-installing Windows 10 across its old and new PCs and tablets within days of the release of the new OS on July 29.

One of HP's first products with Windows 10 will be the 8-inch Pro Tablet 608 G1, which will ship in July with Windows 8.1 and then come with Windows 10 pre-installed starting in August. Customers buying the tablet in July will be able to upgrade free to Windows 10 for one year in line with Microsoft policy.

PC makers have said the new OS could bring relevance back to Windows, which lost some goodwill following Windows 8. Windows 10 marks the return of the Start menu and boasts new features like biometric authentication, the Edge browser and the Cortana personal assistant.
Microsoft is providing free upgrades to Windows 10 from Windows 7 and Windows 8.1 for one year. HP wasn't sure when Windows 10 would be released, so it made sense to keep PCs ready for the new OS, vice president at HP said. 

reference:
http://www.computerworld.com/article/2937779/tablets/hp-aims-for-quick-switch-to-windows-10-on-pcs-tablets.html

Win 10 latest buzz-A Quick Peep

Microsoft unveils lots more about Windows 10, the next generation of its operating system, including how it will work across mobile, tablet, desktop and other platforms at a special windows 10 event.lets make a peek emerging things in point form.

• Windows 10 Has 1.7 Million Beta Testers

Windows 10 has been available as a technical preview since September 2014 and already Microsoft has signed up a sizeable testing contingent from the general public. The company revealed that over 1.7 million users are participating in the Insider program that provides access to early builds of Windows 10 ahead of its general release from over 1 billion Windows users worldwide.

• Windows 10 Is A Free Update for the first Year

Windows 10 will be a free update, for users running Windows 7 or Windows 8.1 on PCs or notebooks, and for Windows Phone 8.1 users on mobile.

• Windows 10 Mobile Integrates Skype For Calls And Messages

The best thing about Windows 10 on mobile might be that it integrates Skype right into both the phone app and messages

• Windows 10 Mobile Gets Free Office Suite Apps

MS Word, Excel and PowerPoint are all going to arrive on Windows Phone for smartphones and small tablets, which are optimized for touch.

• Xbox App For Windows 10 causes Gamers More Social

Microsoft is trying to build a true, cross-service social network from Xbox on Windows 10 that spans services including Steam.

• Spartan Is A Brand New Browser For Windows 10

Spartan, a new browser built from the ground up for speed, collaboration and simplicity with Reading And PDF Markup Modes

• Microsoft Made Windows Holographic, An Augmented Reality Extension Of Windows 10

it lets you see the real world with virtual objects laid overtop. Just work on a virtual engine in your actual garage with your mechanic friend across the country.

• Microsoft HoloLens

MS is taking matters into its own hands with a headset to support Windows Holographic.It has transparent lenses so you can see the world around you, but overlays a digital image that places virtual objects in your surroundings.

references:
http://techcrunch.com/2015/01/21/windows-10-event-summary/?ncid=rss&cps=gravity_1730_-9061766176415544194